diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td --- a/clang/include/clang/Driver/Options.td +++ b/clang/include/clang/Driver/Options.td @@ -1563,6 +1563,9 @@ def fno_strict_vtable_pointers: Flag<["-"], "fno-strict-vtable-pointers">, Group; def fno_strict_overflow : Flag<["-"], "fno-strict-overflow">, Group; +def fno_temp_file : Flag<["-"], "fno-temp-file">, Group, + Flags<[CC1Option, CoreOption]>, HelpText< + "Directly create compilation output files. This may lead to incorrect incremental builds if the compiler crashes">; def fno_threadsafe_statics : Flag<["-"], "fno-threadsafe-statics">, Group, Flags<[CC1Option]>, HelpText<"Do not emit code to make initialization of local statics thread safe">; def fno_use_cxa_atexit : Flag<["-"], "fno-use-cxa-atexit">, Group, Flags<[CC1Option]>, diff --git a/clang/include/clang/Frontend/FrontendOptions.h b/clang/include/clang/Frontend/FrontendOptions.h --- a/clang/include/clang/Frontend/FrontendOptions.h +++ b/clang/include/clang/Frontend/FrontendOptions.h @@ -294,6 +294,9 @@ /// Whether timestamps should be written to the produced PCH file. unsigned IncludeTimestamps : 1; + /// Should a temporary file be used during compilation. + unsigned UseTemporary : 1; + CodeCompleteOptions CodeCompleteOpts; /// Specifies the output format of the AST. @@ -442,7 +445,7 @@ UseGlobalModuleIndex(true), GenerateGlobalModuleIndex(true), ASTDumpDecls(false), ASTDumpLookups(false), BuildingImplicitModule(false), ModulesEmbedAllFiles(false), - IncludeTimestamps(true), TimeTraceGranularity(500) {} + IncludeTimestamps(true), UseTemporary(true), TimeTraceGranularity(500) {} /// getInputKindForExtension - Return the appropriate input kind for a file /// extension. For example, "c" would return Language::C. diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp --- a/clang/lib/Driver/ToolChains/Clang.cpp +++ b/clang/lib/Driver/ToolChains/Clang.cpp @@ -5005,6 +5005,7 @@ Args.AddLastArg(CmdArgs, options::OPT_ftime_trace_granularity_EQ); Args.AddLastArg(CmdArgs, options::OPT_ftrapv); Args.AddLastArg(CmdArgs, options::OPT_malign_double); + Args.AddLastArg(CmdArgs, options::OPT_fno_temp_file); if (Arg *A = Args.getLastArg(options::OPT_ftrapv_handler_EQ)) { CmdArgs.push_back("-ftrapv-handler"); diff --git a/clang/lib/Frontend/CompilerInstance.cpp b/clang/lib/Frontend/CompilerInstance.cpp --- a/clang/lib/Frontend/CompilerInstance.cpp +++ b/clang/lib/Frontend/CompilerInstance.cpp @@ -672,7 +672,7 @@ StringRef Extension) { return createOutputFile(getFrontendOpts().OutputFile, Binary, /*RemoveFileOnSignal=*/true, InFile, Extension, - /*UseTemporary=*/true); + getFrontendOpts().UseTemporary); } std::unique_ptr CompilerInstance::createNullOutputFile() { diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp --- a/clang/lib/Frontend/CompilerInvocation.cpp +++ b/clang/lib/Frontend/CompilerInvocation.cpp @@ -1887,6 +1887,7 @@ Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); + Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file); Opts.CodeCompleteOpts.IncludeMacros = Args.hasArg(OPT_code_completion_macros); diff --git a/clang/lib/Frontend/FrontendActions.cpp b/clang/lib/Frontend/FrontendActions.cpp --- a/clang/lib/Frontend/FrontendActions.cpp +++ b/clang/lib/Frontend/FrontendActions.cpp @@ -140,7 +140,7 @@ std::unique_ptr OS = CI.createOutputFile(CI.getFrontendOpts().OutputFile, /*Binary=*/true, /*RemoveFileOnSignal=*/false, InFile, - /*Extension=*/"", /*UseTemporary=*/true); + /*Extension=*/"", CI.getFrontendOpts().UseTemporary); if (!OS) return nullptr; diff --git a/clang/test/Driver/clang_f_opts.c b/clang/test/Driver/clang_f_opts.c --- a/clang/test/Driver/clang_f_opts.c +++ b/clang/test/Driver/clang_f_opts.c @@ -588,3 +588,6 @@ // CHECK-TRIVIAL-PATTERN-NOT: hasn't been enabled // CHECK-TRIVIAL-ZERO-GOOD-NOT: hasn't been enabled // CHECK-TRIVIAL-ZERO-BAD: hasn't been enabled + +// RUN: %clang -### -S -fno-temp-file %s 2>&1 | FileCheck -check-prefix=CHECK-NO-TEMP-FILE %s +// CHECK-NO-TEMP-FILE: "-fno-temp-file" \ No newline at end of file